Bad News Cubs.

Bruce Miles of the Arlington Heights Daily Herald is reporting that Cubs pitcher Ted Lilly underwent arthroscopic shoulder surgery yesterday and could miss the start of the regular season. Lilly, who has been the Cubs' most reliable starter in recent years, says he hopes to start throwing in four months. 

"The idea is maybe to start throwing in four months or so," he said. "A lot of that is going to be dictated on just how the rehab goes. That can change one way or another. My intention is to get back as soon as I can without setting myself back."

Since signing with the Cubs, Lilly has gone 44-26 with a 3.67 ERA. Entering a contract year in 2010, you can bet that Lilly wants to get back to the mound as soon as possible.

How will this impact the Cubs' moves this offseason?

The Cubs are not expected to bring back Rich Harden, meaning a spot will open up in the rotation. Currently, the rotation will look something like this: Carlos Zambrano, Ted Lilly, Ryan Dempster, Randy Wells, and either Tom Gorzelanny or Jeff Samardzija. 

With Lilly out, it seems even more imperative that the Cubs bring in a veteran arm to give the Cubs some stability at the back-end of their rotation. Free agent pitcher Randy Wolf could be an option for that role. 

Other options include Javier Vazquez of the Braves through a trade, or free agents Justin Duchscherer, Brett Myers, or Joel Piniero.